grid man page on UnixWare

Man page or keyword search:  
man Server   3616 pages
apropos Keyword Search (all sections)
Output format
UnixWare logo
[printable version]

grid(n)			     Tk Built-In Commands		       grid(n)

______________________________________________________________________________

NAME
       grid - Geometry manager that arranges widgets in a grid

SYNOPSIS
       grid option arg ?arg ...?
_________________________________________________________________

DESCRIPTION
       The  grid command is used to communicate with the grid geometry manager
       that arranges widgets in rows and columns  inside  of  another  window,
       called  the  geometry  master (or master window).  The grid command can
       have any of several forms, depending on the option argument:

       grid slave ?slave ...? ?options?
	      If the first argument to grid is a window name (any value start‐
	      ing  with	 ``.''), then the command is processed in the same way
	      as grid configure.

       grid bbox master ?column row? ?column2 row2?
	      With no arguments, the bounding box (in pixels) of the  grid  is
	      returned.	  The  return value consists of 4 integers.  The first
	      two are the pixel offset from the master window (x  then	y)  of
	      the top-left corner of the grid, and the second two integers are
	      the width and height of the grid, also in pixels.	 If  a	single
	      column and row is specified on the command line, then the bound‐
	      ing box for that cell is returned, where the top	left  cell  is
	      numbered from zero.  If both column and row arguments are speci‐
	      fied, then the bounding box spanning the rows and columns	 indi‐
	      cated is returned.

       grid columnconfigure master index ?-option value...?
	      Query  or	 set  the column properties of the index column of the
	      geometry	master,	 master.   The	valid  options	are  -minsize,
	      -weight  and  -pad.   If	one or more options are provided, then │
	      index may be given as a list of column indeces to which the con‐ │
	      figuration  options  will	 operate on.  The -minsize option sets
	      the minimum size, in screen units, that will  be	permitted  for
	      this  column.   The  -weight  option (an integer value) sets the
	      relative weight for apportioning any extra spaces among columns.
	      A	 weight of zero (0) indicates the column will not deviate from
	      its requested size.  A column whose weight is two will  grow  at
	      twice  the  rate	as  a column of weight one when extra space is
	      allocated to the layout.	The -pad option specifies  the	number
	      of  screen  units	 that will be added to the largest window con‐
	      tained completely in that column when the grid geometry  manager
	      requests	a  size from the containing window.  If only an option
	      is specified, with no value, the current value of that option is
	      returned.	 If only the master window and index is specified, all
	      the current settings are returned in an list of "-option	value"
	      pairs.

       grid configure slave ?slave ...? ?options?
	      The  arguments consist of the names of one or more slave windows
	      followed by pairs of arguments that specify how  to  manage  the
	      slaves.  The characters -,  x and ^, can be specified instead of
	      a window name to alter the  default  location  of	 a  slave,  as
	      described	 in  the  ``RELATIVE  PLACEMENT'' section, below.  The
	      following options are supported:

	      -column n
		     Insert the slave so that it occupies the  nth  column  in
		     the  grid.	  Column numbers start with 0.	If this option
		     is not supplied, then the slave is arranged just  to  the
		     right  of	previous slave specified on this call to grid,
		     or column "0" if it is the first slave.  For each x  that
		     immediately  precedes  the	 slave, the column position is
		     incremented by one.  Thus the x represents a blank column
		     for this row in the grid.

	      -columnspan n
		     Insert  the  slave	 so  that it occupies n columns in the
		     grid.  The default is one column, unless the window  name
		     is	 followed  by  a  -,  in  which case the columnspan is
		     incremented once for each immediately following -.

	      -in other
		     Insert the slave(s) in the master window given by	other.
		     The default is the first slave's parent window.

	      -ipadx amount
		     The amount specifies how much horizontal internal padding
		     to leave on each side of the slave(s).  This is space  is
		     added  inside  the slave(s) border.  The amount must be a
		     valid screen distance, such as 2 or .5c.  It defaults  to
		     0.

	      -ipady amount
		     The  amount  specifies how much vertical internal padding
		     to leave on on the top and bottom of the slave(s).	  This
		     space  is	added  inside the slave(s) border.  The amount
		     defaults to 0.

	      -padx amount
		     The amount specifies how much horizontal external padding
		     to	 leave	on each side of the slave(s), in screen units.
		     The amount defaults to 0.	This space  is	added  outside
		     the slave(s) border.

	      -pady amount
		     The  amount  specifies how much vertical external padding
		     to leave on the top and bottom of the slave(s), in screen
		     units.   The  amount  defaults to 0.  This space is added
		     outside the slave(s) border.

	      -row n Insert the slave so that it occupies the nth row  in  the
		     grid.   Row  numbers start with 0.	 If this option is not
		     supplied, then the slave is arranged on the same  row  as
		     the previous slave specified on this call to grid, or the
		     first unoccupied row if this is the first slave.

	      -rowspan n
		     Insert the slave so that it occupies n rows in the	 grid.
		     The  default  is  one row.	 If the next grid command con‐
		     tains ^ characters instead of slaves that	line  up  with
		     the columns of this slave, then the rowspan of this slave
		     is extended by one.

	      -sticky style
		     If a slave's cell is larger  than	its  requested	dimen‐
		     sions,  this  option may be used to position (or stretch)
		     the slave within its cell.	 Style	is a string that  con‐
		     tains  zero  or more of the characters n, s, e or w.  The
		     string can optionally contains spaces or commas, but they
		     are ignored.  Each letter refers to a side (north, south,
		     east, or west) that the slave will "stick" to.  If both n
		     and  s  (or  e  and  w)  are specified, the slave will be
		     stretched to fill the entire height  (or  width)  of  its
		     cavity.   The  sticky  option subsumes the combination of
		     -anchor and -fill that is used by pack.  The  default  is
		     {},  which causes the slave to be centered in its cavity,
		     at its requested size.

	      If any of the slaves are already managed by the geometry manager
	      then any unspecified options for them retain their previous val‐
	      ues rather than receiving default values.

       grid forget slave ?slave ...?
	      Removes each of the slaves from grid for its master  and	unmaps
	      their windows.  The slaves will no longer be managed by the grid
	      geometry manager.	 The configuration options for that window are
	      forgotten, so that if the slave is managed once more by the grid
	      geometry manager, the initial default settings are used.

       grid info slave
	      Returns a list whose  elements  are  the	current	 configuration
	      state  of the slave given by slave in the same option-value form
	      that might be specified to grid configure.  The first  two  ele‐
	      ments of the list are ``-in master'' where master is the slave's
	      master.

       grid location master x y
	      Given  x and y values in screen units  relative  to  the	master
	      window,  the  column  and row number at that x and y location is
	      returned.	 For locations that are above or to the	 left  of  the
	      grid, -1 is returned.

       grid propagate master ?boolean?
	      If  boolean has a true boolean value such as 1 or on then propa‐
	      gation is enabled for master, which must be a window  name  (see
	      ``GEOMETRY PROPAGATION'' below).	If boolean has a false boolean
	      value then propagation is disabled for  master.	In  either  of
	      these  cases an empty string is returned.	 If boolean is omitted
	      then the command returns 0 or 1 to indicate whether  propagation
	      is  currently  enabled  for  master.   Propagation is enabled by
	      default.

       grid rowconfigure master index ?-option value...?
	      Query or set the row properties of the index row of the geometry
	      master,  master.	 The  valid  options are -minsize, -weight and
	      -pad.  If one or more options are provided, then	index  may  be │
	      given  as	 a  list  of  row  indeces  to which the configuration │
	      options will operate on.	The -minsize option sets  the  minimum
	      size, in screen units, that will be permitted for this row.  The
	      -weight option (an integer value) sets the relative  weight  for
	      apportioning  any extra spaces among rows.  A weight of zero (0)
	      indicates the row will not deviate from its requested  size.   A
	      row  whose weight is two will grow at twice the rate as a row of
	      weight one when extra space is allocated	to  the	 layout.   The
	      -pad  option  specifies  the number of screen units that will be
	      added to the largest window contained  completely	 in  that  row
	      when the grid geometry manager requests a size from the contain‐
	      ing window.  If only an option is specified, with no value,  the
	      current  value  of  that option is returned.  If only the master
	      window and index is specified,  all  the	current	 settings  are
	      returned in an list of "-option value" pairs.

       grid remove slave ?slave ...?
	      Removes  each  of the slaves from grid for its master and unmaps
	      their windows.  The slaves will no longer be managed by the grid
	      geometry	manager.   However, the configuration options for that
	      window are remembered, so that if the slave is managed once more
	      by the grid geometry manager, the previous values are retained.

       grid size master
	      Returns  the size of the grid (in columns then rows) for master.
	      The size is determined either by the slave occupying the largest
	      row  or  column,	or  the	 largest column or row with a minsize,
	      weight, or pad that is non-zero.

       grid slaves master ?-option value?
	      If no options are supplied, a list of all of the slaves in  mas‐
	      ter  are	returned,  most recently manages first.	 Option can be
	      either -row or -column which causes only the slaves in  the  row
	      (or column) specified by value to be returned.

RELATIVE PLACEMENT
       The  grid  command  contains  a limited set of capabilities that permit
       layouts to be created without specifying the row and column information
       for  each  slave.   This	 permits  slaves  to  be rearranged, added, or
       removed without the need to explicitly specify row and column  informa‐
       tion.   When  no	 column	 or  row information is specified for a slave,
       default values are chosen for column, row, columnspan  and  rowspan  at
       the  time  the  slave  is managed. The values are chosen based upon the
       current layout of the grid, the position of the slave relative to other
       slaves  in the same grid command, and the presence of the characters -,
       ^, and ^ in grid command where slave names are normally expected.

	      -	     This increases the columnspan of the slave to  the	 left.
		     Several  -'s  in  a  row  will  successively increase the
		     columnspan. A - may not follow a ^ or a x.

	      x	     This leaves an empty column between the slave on the left
		     and the slave on the right.

	      ^	     This  extends  the	 rowspan of the slave above the ^'s in
		     the grid.	The number of ^'s in a row must match the num‐
		     ber of columns spanned by the slave above it.

THE GRID ALGORITHM
       The  grid  geometry manager lays out its slaves in three steps.	In the
       first step, the minimum size needed to fit all of the  slaves  is  com‐
       puted,  then  (if  propagation  is turned on), a request is made of the
       master window to become that size.  In the second step,	the  requested
       size  is	 compared against the actual size of the master.  If the sizes
       are different, then spaces is added to or taken away from the layout as
       needed.	For the final step, each slave is positioned in its row(s) and
       column(s) based on the setting of its sticky flag.

       To compute the minimum size of a	 layout,  the  grid  geometry  manager
       first  looks at all slaves whose columnspan and rowspan values are one,
       and computes the nominal size of each row or column to  be  either  the
       minsize for that row or column, or the sum of the padding plus the size
       of the largest slave, whichever is  greater.   Then  the	 slaves	 whose
       rowspans	 or columnspans are greater than one are examined.  If a group
       of rows or columns need to be increased in size in order to accommodate
       these  slaves,  then  extra space is added to each row or column in the
       group according to its weight.  For each group whose  weights  are  all
       zero, the additional space is apportioned equally.

       For  masters  whose size is larger than the requested layout, the addi‐
       tional space is apportioned according to the row	 and  column  weights.
       If  all of the weights are zero, the layout is centered within its mas‐
       ter.  For masters whose size is	smaller	 than  the  requested  layout,
       space  is  taken away from columns and rows according to their weights.
       However, once a column or row shrinks to its  minsize,  its  weight  is
       taken to be zero.  If more space needs to be removed from a layout than
       would be permitted, as when all the rows or columns are at there	 mini‐
       mum sizes, the layout is clipped on the bottom and right.

GEOMETRY PROPAGATION
       The  grid geometry manager normally computes how large a master must be
       to just exactly meet the needs of its slaves, and it sets the requested
       width and height of the master to these dimensions.  This causes geome‐
       try information to propagate up through a window hierarchy  to  a  top-
       level  window so that the entire sub-tree sizes itself to fit the needs
       of the leaf windows.  However, the grid propagate command may  be  used
       to  turn	 off  propagation  for one or more masters.  If propagation is
       disabled then grid will not set the requested width and height  of  the
       master window.  This may be useful if, for example, you wish for a mas‐
       ter window to have a fixed size that you specify.

RESTRICTIONS ON MASTER WINDOWS
       The master for each slave  must	either	be  the	 slave's  parent  (the
       default)	 or  a	descendant of the slave's parent.  This restriction is
       necessary to guarantee that the slave can be placed over	 any  part  of
       its master that is visible without danger of the slave being clipped by
       its parent.  In addition, all slaves in one call to grid must have  the
       same master.

STACKING ORDER
       If  the	master	for  a slave is not its parent then you must make sure
       that the slave is higher in the stacking order than the master.	Other‐
       wise  the  master  will	obscure the slave and it will appear as if the
       slave hasn't been managed correctly.  The easiest way to make sure  the
       slave  is  higher than the master is to create the master window first:
       the most recently created window will be highest in the stacking order.

CREDITS
       The grid command is based on ideas taken from the GridBag geometry man‐
       ager  written by Doug. Stein, and the blt_table geometry manager, writ‐
       ten by George Howlett.

KEYWORDS
       geometry manager, location, grid, cell, propagation, size, pack

Tk				      4.1			       grid(n)
[top]
                             _         _         _ 
                            | |       | |       | |     
                            | |       | |       | |     
                         __ | | __ __ | | __ __ | | __  
                         \ \| |/ / \ \| |/ / \ \| |/ /  
                          \ \ / /   \ \ / /   \ \ / /   
                           \   /     \   /     \   /    
                            \_/       \_/       \_/ 
More information is available in HTML format for server UnixWare

List of man pages available for UnixWare

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net